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Finding the Fourth Proportional to 6,660.08, 9,180.84 and 5,479.08

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Solution

The fourth proportional to 6,660.08, 9,180.84 and 5,479.08 is: 7,552.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.08 : 9,180.84 = 5,479.08 : x
  2. Step 2: Convert to fraction form
    6,660.08/9,180.84 = 5,479.08/x
  3. Step 3: Cross multiply
    6,660.08x = 9,180.84 × 5,479.08
  4. Step 4: Simplify right side
    6,660.08x = 50,302,556.83
  5. Step 5: Solve for x
    x = 50,302,556.83/6,660.08
  6. Step 6: Final answer
    x = 7,552.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.